Precise smoke detection and fewer false alarms: This smoke detector reliably protects you and your family from smoke and fire. The system quickly detects smoke from smoldering fires thanks to state-of-the-art photoelectric sensors. At least three air samples are analyzed every 10 seconds, which reduces the number of false alarms. Perfect fit: With dimensions of just 78 × 48 mm, an invisible mounting bracket, and a flat design, this mini smoke detector blends discreetly into any interior. Easy installation: Thanks to the easy-to-understand instructions and wireless design, this smoke detector can be installed in just a few minutes. Mounting brackets, screws, and plugs are included. Individual testing: You can trust that your smoke detector was tested with real smoke before leaving the factory. 10-year battery life: No battery replacement needed, as this alarm is equipped with a built-in lithium battery that lasts 10 years. Quality you can rely on: X-Sense is a leading provider of safety devices. The products meet European safety standards and are tested by European certification bodies. Loud 85 dB alarm: The alarm sounds with a loud 85-decibel siren that will wake even the deepest sleeper.